I purchased a Rolex Tudor Oyster Prince self winding at the Selfridge, AFB,MI PX in 1955, #7909. Face reads Tudor Oyster rotor self winding, with a small flower at the top above the word Tudor. It has a Rolex crown on the crown and a Rolex s/s band. What would it cost to have this watch cleaned and oiled. Last time was 20 year ago or longer. It runs ok if I wind it daily but not really self winding at this time.